1031322123213 has 4 divisors (see below), whose sum is σ = 1375096164288. Its totient is φ = 687548082140.

The previous prime is 1031322123203. The next prime is 1031322123229. The reversal of 1031322123213 is 3123212231301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031322123213 - 2⁶ = 1031322123149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031322123203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171887020533 + ... + 171887020538.

It is an arithmetic number, because the mean of its divisors is an integer number (343774041072).

Almost surely, 2^{1031322123213} is an apocalyptic number.

It is an amenable number.

1031322123213 is a deficient number, since it is larger than the sum of its proper divisors (343774041075).

1031322123213 is an equidigital number, since it uses as much as digits as its factorization.

1031322123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343774041074.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1031322123213 its reverse (3123212231301), we get a palindrome (4154534354514).

The spelling of 1031322123213 in words is "one trillion, thirty-one billion, three hundred twenty-two million, one hundred twenty-three thousand, two hundred thirteen".